Tone-arm support



Nov. 27, 1923. 1,475,277

F. CHENEY TONE ARM SUPPORT Filed Feb. l5., 1918 "Hum llllill N Patented Nov., 2?, i923.

nire sr ATE NT' QFFIC COMPANY, or cHroeGo, rLLrNoIs, A eonPoRArroN'orrLLINoIs.

TONE-ARM' snrroa'r- Application filed February 15, 1918. Serial No. 217,316.

To aZVZ 'whom concern citizen of the United States, residing at Chi- AfulI cago, in the county lof C'ook and StateofV Illinois, have inventedcertainnew and usenrprovements in Tone-Arm Supports, of whlch the following 1s a specication.

. My` invention refers to talking machines Y and particularlyto a novel tone arm support wherein the tone armV is securely supported on the cabinet whilebeing permitted to be movable horizontally andY vertically with respect to the surface ofthe record. In the present style of disctalking machines, it is desirable to mount the tone arm so that it may be moved horizontally and vertically,

the horizontal inovementbeing to accommodate it to the records as; the same are being played, also to adjust the arm to records of t The vertical movement is kdevarious sizes. sirable to move the sound box away from the record when the record is being put on or removed from the table, also to adapt the tone arm to various machines wherein the height of the record table varies and to permit vertical movementdue to the unevenness of the record groove and the like. Furthermore, such movement of the tone arm isidesir-able when changing needles or for any prevents full and e .other purpose.. In arrangements wherein the tone arm'is mounted to move vertically, v

it has been found that after a short time the tone arm becomes` displaced with respect to its connection to the horn.v Such displacement even though sli ht affects the tones and musical sounds;

By my inventonI overcome theserobjecv tions by pivotally mounting the tone arm fin a support which support may be rotated yabout a vertical axis.' v

One of the objects of my inventionis to provide means to vpermit swinging of the tone arm. horizontally. and .verticallyu Another object is to provide'a lirm base yfor 4the tone arm which base is arranged to permit vertical and horizontal movement of the arm withouty afecting the p. connection:be-5

tween the arm and the base.

- A further object is to,provide/ Aafnoveli` base for a tone arm arranged topermithorizontal 'andvertiCal movement of the tone v -arm andmeans to Be it known that I, `FOREST CHENEY, a

cient reproduction of.

lThe portion 7 is connect the arm to the base. n

A still furtherobjeot is to providea base Illier centering the ltone arm in the'base memarm supports for talkingmachines.Y

These and othergo-bjects willbe apparent from' the drawings,fin which- 1' vFigure 1 is a top plan View of a tone arm support embodying my invention, portion of the arm beingshown.

Figure 2 is a vertical sectional view through the aXis of the support showing the various connections and arrangements of the preferred embodiment.

Figure 3 is: a horizontal section through the1 line of pivotk supporting the tone-arm, anc v Figure 4 is aside elevation partially in section a portion of' the parts being broken away to show cooperation between the various members comprising the bracket.

In the drawings, 5 represents the top` portion of a talking machiney cabinet, which portion is provided with the usual aperture 6, for connection with the horn or amplifying means. Mounted on the upper portion of the top member 5 is amember comprising a fixed or upstanding collarl 7 with a flange 8 therearound, the flange being provided with proper apertures for securing the extending into the aperture 6, the lower` `portion ofthe collar 7 `is provided with a projection 11 adapted to fit within the aperture 6. .provided with an opening therethrough having diameters lor different sizes. In the upper portion. of the liXed collar 7 is a circular aperture 12, below which is also a circular aperture ylybut .smaller in diameter, the interiorv portions `bei ghdefined bythe shoulderl/l.t Surroundin@ t e liXed collar 7 I provide aumovable collar 15 'adapted to surroundrthe iXed. collar '17;snugl and to haveabearingbnthe `flange 8. t'diametrically opposite points in the collar 15 Iprovide apertures 1 64 prefera-bly threaded within which are mounted only a A yet' `further objectl is to improve tone y I employ'l'oclr pivot pins having in the form shown, three diameters, the largest diameter 17 being threaded to engage the threaded aperture 16 in the collar 15. 18 and an endportion 19 still furthe-r reduced in diameter are provided. Vithin the upper portion of the walls of the fixed collarl 7 are provided elongated horizontally disposedV apertures 20, through which the intermediate portions 18 of the pins extend. The fit between the portion 18 andthe apertures 2O is such as to permit movement of the pins throu h the aperture without causing binding t ere-between.L 'With such an arrangement it will be observed that the Vend portions 19 of the pins extend within 'the interior of the larger aperture 12 within the fixed collar 7 Also with the construction as above described, it is possible to rotate the collar 15 about the fixed collar 7 to a limited extent which extent is governed by the length of Vthe horizontally disposed apertures 20 in t-he collar 7. For securing the pins longitudinally in adjusted position, nuts 21 engaging the threaded portions l17 of the. pins and adapted to be tightened against the outer portion of the collar 15 when the pins have been adjusted longitudinally as will more fully be explained.k Y

y Adapted to extend within the larger aperture 21 of the fixed collar 7 is theenlarged end of the tone arm 22. The end of the tone arm terminates in a circular enlargement or fiange 23, which is preferably curvedV in cross section. The outer diameter of the flange 23 is'slightly less than the interior diameter of the aperture 12 within the collar 7, Flange 23 is provided with apertures 24. shaped to receive the Yreduced ends 19V of the pins'. By Vreason of 'the shoulder 25 formed between the reduced portions 18 and 19 Vof the'pins, the pins may be moved'so that these shoulders 25 will abut the flanges 23 of the y tone arm and thus by proper manipulation.

of the pins the toneV arm may be brought to a position concentric with the opening 13 through the support and consequently, will be concentrically arranged with respect to the aperture 6 leading to the horn. By reason of the fact thatY the diameter of the fiange 23 is only slightly less than the diam- V eter of the aperture 12 by reason ofthe curved surface thereof aV certain amount of movement of the tone arm is permitted. As

`before explained the intermediate reduced portions 18V of the/pins do not bind inthe apertures 20 of the xed collar 7, therefore,

Vby manipulation of the pins and the lock nuts Y21 the Vtone, arm having been arranged in l,proper position and the look nuts tightened,

it will be observed that the collars 15 may be moved to swing theztone arm without bind# ing against the fixed Vcollar 7.

It will be thus observed that I have pron The intermedia-te portion-Y cations as come within the scope of the appended claims I consider as coming Within the .spirit of my invention.

1. In a sound reproducing machine, means for supporting a tone arm therein, saidl vided a base support for tone arms which' means including a fixed. collar secured to a cabinet and having a flange vtl1erearound,a movable collar surrounding said fixed' collar and having a Ybearingon the flangeLsaid collar having horizontally disposed aper-y tures therein, means carried by the movable collar and passing throughsaid apertures for supporting the tone arm, said means including screws having a plurality of shoulders formed in the length thereof Vand with a plurality of portions of varying diameters, the largest diameter adapted to engage the collar and the smallest diameter adapted to engage the tone arm, and an intermediate portion adapted to support the weight of the arm on the fixed support, the shoulders defining the smallest diameter abutting said tone arm to move the same bodily with respect to the support as said screws are manipulated.

fiange therearound, a movablencollar surrounding said fixed collar and having abearving on the flange, and means carried by the 2. In combination, ay fixed collar having a movable' collar for supporting Ya tone arm Y within the fixed collar.

3. In combination, a fixed collar having a flange therearound, a movable collar sur-V rounding said fixed collar and having a bearing on the flange, said fixed' collar having apertures therein, and means carried by the movable collar extending through the apertures in the fixed collar 'for connection toa i 'tone arm. Y

' A1. In combination, a fixed collar lhaving a flange therearound, a movable collar surrounding said fixed collar and having a bearing o n theflange, said fixed collar having horizontally disposed apertures therein, and

means carriedby the movable collar extend-A 'ing through the apertures in the fixed collar forremovable connection to'a tone arm.Y

5. In combination, a receiver, a horizontally movable bearing therearound, an arm extending into the receiver, and means carried by the bearing for pivotally supporting the arm whereby the arm may be moved vhorizontally and. vertically relatively to lsaid receiver. Y

6. In a talking machine, in combination withthe cabinet, a tone arm supportincluding aflanged member adapted tobeV mountmember supporter] on and voutside or' said fixed member adapted for connection to the tone arm. Y 10 Signed at Chicago, State of Illinois, this v 2nd day of February, A. D., 1918.`

l FOREST CHENEY. 

